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The Smart Card removal option must be configured to Force Logoff or Lock Workstation.


Finding ID Version Rule ID IA Controls Severity
V-220924 WN10-SO-000095 SV-220924r569187_rule Medium
Unattended systems are susceptible to unauthorized use and must be locked. Configuring a system to lock when a smart card is removed will ensure the system is inaccessible when unattended.
Microsoft Windows 10 Security Technical Implementation Guide 2023-09-29


Check Text ( C-22639r555257_chk )
If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Path: \SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\

Value Name: SCRemoveOption

Value Type: REG_SZ
Value: 1 (Lock Workstation) or 2 (Force Logoff)

This can be left not configured or set to "No action" on workstations with the following conditions. This must be documented with the ISSO.
-The setting cannot be configured due to mission needs, or because it interferes with applications.
-Policy must be in place that users manually lock workstations when leaving them unattended.
-The screen saver is properly configured to lock as required.
Fix Text (F-22628r555258_fix)
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Interactive logon: Smart card removal behavior" to "Lock Workstation" or "Force Logoff".